Adolph gk xthpetz



Oct. 12 1926. 1,602,827

A. G. KUPETZ COMBINED TYPBWRITING AND COMPUTING MACHINE Filed Oct. 4, 1924 m g h v Patented Oct. 12, 1926.

UNITED STATES 1,602,827 PATENT OFFICE.

ADOLPH G. KUPETZ, 01' NEW ROCHELLE, NEW YORK, ASBIGNOB T0 UNDEBWOOD 00M- PU'IING IACHINE COMPANY, OF NEW YORK, N. Y A CORPORATION OF NEW YORK.

COMBINED TYPEWBITING AND COMPUTING MACHINE.

Application filed October 4, 1824. Serial No. 741,560.

This invention relates to an improvement in the operation of the tabulating keys for the typewriter carriage in combined typewriting and computing machines of the Underwood-Hanson ty e, and is an imrovement on W. L. umprechts Patents lo. 1,237,895 and No. 1,268,565, respectively dated August 21, 1917, and June 4, 1918, and also on J. N. Thorntons Patent No. 1,283,360, dated October 29, 1918.

The numbers to be computed are accumulated by setting up individuals of a nest of pins b a method of cross-selection to correspon with the particular denominational columns in whic they are typed.

The numbers thus accumulated are run up by the actuation of a general operator, which drives all of the pin-bearing members distances corresponding to the particular pins set up thereon, so as to transfer the numbers to associated dial or computing wheels forming a register.

In positioning the carriage at the correct denomination, ready for the writing of the next number, it has been necessary to cause the tabulator-key' to release certain silencing cams or rolls of the adding mechansim. Heretofore it has been done in the manner illustrated in Gumprechts Patent No. 1,- 268,565, strong springs being necessary for returning thesilencing rolls to their efiective positions, since the typewriter carriage may be in a computing zone in which various registers are efiective, and consequently the silencing rolls have to raise their selectors to actuate the corresponding jacks or connections to the pin-bars; and the work of overcoming said springs has made the depression of the key hard.

An object of this invention is to improve the above-mentioned mechanism by relieving the tabulator-keys of the work neces sary to throw the spring-pressed silencing rolls to their ineffective positions, and therefore the principal advantage of this invention is to lighten the touch of the tabulator-keys; and for this purpose all the work incident to the operation of these keys is performed automatically by the motor or source of power usually employed at intervals for driving the registers.

To this end, the tabular-keys operate a universal member, which actuates means for tripping the motor, which operates means to throw the silencing rollers to ineffective positions. This operation may take place when there is no number set u in the re ister-bars. By silencin the ro lers the ta ulating operation may performed noiselessly and wear of the selecting mechanism is reduced.

There is also provided mechanism whereby the silencing rollers will be locked in ineffective positions while the tabulating key is depressed. This reduces strain on the parts and eliminates the back ressure on the tabulating keys that woul be set up when the cycle of operations of the general operator is concluded.

Other features and advantages will hereinafter appear,

in the accompanying drawings,

F gure 1 is a perspective rear view, illustrating the mechanism and showing all the parts in normal or efiective osition.

Figure 2 is a side view of t e mechanism, which more particularly forms part of this invention, showing also all the members in normal or'efi'ective position.

Figure 3 is a side view of a silencing roller shown in its ineffective position and held thus by means of an interfering latch.

Figure 4 is a side view of a motor-operating trip-link, shown as it stands after being tripped from under a motor-trip bail.

Said Underwood typewriting machine usually is provided with a tabulating mechanism including a set of tabulating keys 1 and levers 2 fulcrumed at 3 and at their rear ends connected to raise decimal-stops 4, which co-operate with column-stops 5 on the carriage. Upon each of the decimalstops 4 a shoulder 6 is formed to engage a universal bar 7 for the purpose of throwing silencing roll 8 to its ineffective position. The universal bar 7, mounted on a rockshaft 9, is held in normal position against the shoulder 6 by means of a spring 10 acting on an arm 11, which may form an integral part of the rock-shaft 9, and is operatively connected with a downwardlyextending link 12 by means of a pin 13. Said link 12 has on its extreme lower end a shoulder 14 which actuates on a bail-lever 15 in the same manner as it would be operated by the upward action of a motortrip link 16, so as to rock the lever 15 in the manner disclosed in said Thornton Patent No 1,283,360, said trip link 16 being drawn up by the action of a motor-trip, not shown. On depressing the key 1, the lever 2 acting on the decimal-stop 4 and through the universal bar 7, arm 11 and link 12 by means of the shoulder 14, will draw up bail-lever 15, which, by its rocking action on fulcrum shaft 17, will withdraw link 18 from above a lever 19, so that the latter may rock under the pull of spring 20, whereby the opposed end of lever 19, which engages a pin 20 on the key 21, will depress the latter to remove the stop-pin 22 from in front of the lug 1n the clutch-closer, thereby putting the general operator into driving relation with the motor. Upon engaging the clutch, the general operator 23 moves forward, the elbow-arm 24 rides out of the notch and causes the bellcrank arm 25 to strike against the arm 26 and move the bar 27 rearwardly, so that, by means of the pivot 28 mounted on bell-crank 29 and a roll 30 pivoted thereon, the bellcrank 29 will swing an arm 31 fast on rockshaft 32 on which the silencing roll 8 is carried by means of arms 33.

To keep the general operator 23 from repeating its operation in case the operative keeps the tabulator-key depressed, means are provided to release link 12 from under baillever 15, so as to allow the mechanism controlled by said bail-lever to return to its normal or stop position and to release the clutch by actuating stop-pin 22 in the usual way. To this end, there is provided a link 34 connected to lever 35 by means of fulcrum pin 36, said lever 35 being mounted fast on rock-shaft 32 and therefore rocks with it when the rolls are operated and draws up by its action link 34, which is provided in its extreme lower end with a finger 37 having slot 38 inclined downwardly and rearwardly and operatively engaging with pin 39 on backspacer arm 40. There is another pin 41 mounted on link'34 engaging in slot 42 in link 12. As the silencing rolls are thrown rearwardly to ineffective position by rockin shaft 32, the upward motion of lever 35 t rough pin 36 will draw on link 34 which by sliding on stationary pin 39 in slot 38 will carry along with it lever 12 by the action of pin 41 sliding in slot 42 of said lever 12, so that, by throwing it forward, it will disconnect or withdraw shoulder 14 in link 12 from under bail-lever 15, thereby releasing all mechanism con trolled by said bail-lever 15, link 12 changing its position shown in Figure 2 to that shown in Figure 4.

It is desirable to hold the releasing rolls in their ineffective positions as long as a tabulator-key is depressed, so as not to apply undue strain on the mechanism, and, for this purpose, there is normally held in the position shown in Figures 1 and 2 by the pressure of arm 11 wardly, and, by

provided a latch 43,-

and pin 13 overcoming the tension of spring 44, and being, therefore, ready to swing under adjustable piece 45 as soon as it is released by arm 11 upon operation of tabulator-key 1. Said latch' 43 is mounted on a bracket 46 fast on the machine frame and supported by; fulcrum pin 47. Adjustable piece 45 is mounted on link 48 which is connected to the forwardly-projecting lever 35 mounted on shaft 32, and, by the action on the latter said link 48 is moved upwardly when the silencing rolls are thrown to ineffective positions, thereby carrying adjustable piece 45 fast upon it and allowing latch 43 to get under the latter, as shown in Figure 3. Upon releasing of key 1 by the operative, arm 11 will rock on shaft 9 in a downward direction due to the connecting mechanism previously described,

and, by means of fipin 13, acting on a forwardly-extending nger 49 in latch 43, will restore the latter to its normal position, as shown in Figures 1 and 2.

Other details illustrated in the drawings are of the type usually found in the Underwood machine and are closel related to the mechanism already descri ed. For this reason they will be generally described.

In addition to the step-by-step and the tabulating movements of the carriage 50, devices are provided for back-spacing the carriage, including a back-space kc 51 mounted on a lever 52, which is secured to a shaft 53. Also mounted on shaft 53 is an arm 54, swung downwardly at the depression of key 51, so as to pull on a link 55 against the tension of spring 56. The link 55 is connected to apawl 82 in such a manner and the pawl is so mounted that it will first be drawn into engagement with the rack 57 and then being pivoted at fulcrum 58 by its action will automatically draw the carriage one space in the return direction.

There are usually provided a shift ke 59 and a lever 60 operated by said key an actuating on a shift frame 61, including a rock-shaft 62. It is desirable to throwback to'its ineffective position the silencing roll 8 whenever the shift key is depressed because the numeral-keys write various signs in the upper-case type which should not be recorded in the computing mechanism; and, for this purpose, there is provided an arm 63 fast on shaft 62 extending rearwardly and carrying at its end a roller 64. Upon depressing shift key 59 and the consequent rocking of shaft 62, arm 63 will swing downthe action of roller 64, mounted thereon and operating on a camface 65 of arm 66, will force the latter to move forward, and, by being mounted fast upon said shaft 32, will rock the same and consequently throw the silencing roll 8 to its ineffective position. It will be noted in this connection that arm 67 with the pin68 Ill) thereon slips past the toe 69 on stop 70, so that the arms 66 and 67 move as a unit without a tensioning of the spring 71.

Under dinary conditions, when the shaft 62, bearing the silencing roller 8, is rocked in any other way than by the caseshift frame,'the roller 64;, connected to this frame, will lie in the path of a hump 72 on the loose arm 67, so as to hold it out of the path of stop 70, thereby allowing toe 69 to get in the path of pin 68 on arm 67, so that, when rock-shaft 62 swings to throw the s1- lencing roller to its ineffective position, it will have to tension spring 71, essentially as shown and described in said Gumprecht Patent No. 1,237,895.

The Underwood-Hanson machine usually comprises means for preventing the simultaneous depression of more than one key. In this connection there are provided means to prevent the operative from de ressing any of the numeral-keys 73 while t e silencing rolls are thrown to ineffective positions. It is done generally by means of pivoted dog 74, connector 75 operating on bell-crank 76, and link 77 which rocks shaft 78, and, by means of a lever, interposes a filler-piece 79 between swinging dogs 80 thereby preventing pendant 81, mounted on a key-stem, from being depressed, this mechanism being more fully described also in said Gumprecht Patent No. 1,237,895.

Variations may be resorted to within the scope of the invention, and portions of the im rovements may be used without others.

aving thus described my invention, 1 claim:

1. The combination of a typewriting mechanism including a carriage, acomputing mechanism including a general operator, means normally effective for operatively connecting the typewriting mechanism to the computing mechanism, a motor for operating the general operator, a key-actuated tabulating mechanism to predetermine a computing zone for the carriage and operative to connect the computing mechanism to the motor, means operated by the motor to disconnect the typewriting mechanism from the computing mechanism during a tabulating operation, and means connected to the tabulat-ing mechanism and condiditionel by the general operator to limit the motor to a single cycle of movement.

2. The combination of a typewriting mechanism including a carriage, a computing mechanism including denominational computing trains therefor, means carried by the carriage for controlling the denominational trains of the computing mechanism, a motor for operating the computing 1nechanism, a tabulating mechanism including a key to predetermine a computing zone for the carriage and operative to connect the computing mechanism to the motor and to silence the carriage-controlled means during the tabulating operation, and means connected to the tabulating mechanism and conditioned by the computing mechanism to limit the motor to a single cycle of movement.

3. The combination of a typewriting mechanism including a carriage, a computing mechanism. including a register and denominational trains therefor, means operated by said carriage for controlling the denominational trains of the computing mechanism, a motor for operating said register, a tabulating mechanism including a plurality of keys, means controlled by said tabulating mechanism to set in motion said motor, a plurality of silencing members operated by said motor, means for locking said silencing members in ineffective positions and automatically stopping the motor, and means for restoring said silencing members to normal or eii'ective position by the action of releasing said tabulating keys.

4. In a combined typewriting and computing machine, the combination of a typewriter carriage, a plurality of selecting members for controlling the denominational trains of the computing machine operated by said carriage, a releasing bar for disconnecting or silencing said selecting members, means for operating said releasing bar from a motor, a plurality of tabulator keys, a universal member actuated by said keys, operatively connected for releasing said motor, means for locking said releasing bar, means for sto ping said motor after completing its eye e, and means for restoring the whole mechanism to its normal position upon releasing said tabulator keys.

5. In combination, a typewriting mechanism including a carriage, and a tabulating device therefor including a key, a computing mechanism having registers and including denominational register-operating trains a series of selecting members operable by the carriage for controlling the denominational registering trains, a plurality of releasing rolls for disconnecting or silencing said selecting members, a general operator for running the amounts set in the denominational trains into the registers, a motor for driving said general operator by the depression of the tabulator key, means for operatively connecting the general operator and the silencing members so as to throw the latter to their ineffective positions upon operation of the former, and means connected to the tabulator-key and conditioned by the general operator, to stop the motor at the end of a cycle, independently of the tabulator-key.

6. In combination, a typewriting mechanism including a carriage, and a tabulating device therefor including a key, a computing mechanism .having registers and including denominational trains and also including a series of selecting members 0 erable by the carriage for controlling the enominational trains, a plurality of releasing bars for disconnecting orsilencing said selecting members, a general operator for runmng the amounts set in the denominational trains into the registers, means for setting in motion said general operator by the depression of the tabulator key, means for operatively connecting the general operator and the silencing members so as to throw the latter to their ineffective positions uponoperation of the former, a lock to hold said silencing members in ineffective positions, and means to release said look upon releasing the tabulator key.

7. In combination, a typewritin mechanism including a carriage and ta ulating mechanism therefor, a computing mechanism including a series of registers and denominational register-operating trains therefor, means operated by said carriage for control ling the denominational registering trains, a series of rolls for normally maintaining the carriage-controlling means-in operative relation, a general operator to operate the computing mechanism, a motor, means for operatively connecting the general operator to said motor, mechanism operatively connected to said tabulating mechanism to control said general operator, and means for automatically rendering said rolls effective to maintain the carriage-controlling means in inoperative relation and simultaneously break the connection between the tabulating mechanism and the motor-control.

8. In combination, a typewriter mechanism including a carriage and tabulating mechanism therefor, and a computing mechanism including a series of registers and denominational trains therefor, means operated by said carriage for controlling the denominational trains, said controllin means including a series of rolls norma 1y effective for operatively connecting the typewriter mechanism to the computing mechanism, a general operator to operate said registers, a motor, means for operatively connecting said general operator to said motor, mechanism operatively connected to said tabulating mechanism to control said general operator, means for automatically rendering ineffective said rolls by the action of said general operator, and means for locking said rolls in ineffective positions while the tabulator keys are depressed, and until the general operator has completed its cycle of operation.

' 9. In combinatiomatypewriter mechanism including a carriage and tabulating mechanism therefor, and a computing mechanism including a series of registers and denominational trains therefor, means operated by said carriage for controlling the denominational trains, said controlling means includ ing a series of rolls normally effective for operatively connecting the typewriter mechanism to the computing mechanism, a general operator to operate said registers, a motor, means for operatively connecting said general operator to said motor, mechanism operatively connected to said tabulating mechanism to control said general operator, means for automatically rendering ineffective said rolls by the action-of said general operator, means for locking said rolls in ineffective positions while the tabulator keys are depressed, and until the general operator has completed'its cycle of operation, and means for automatically preventing said general operator from repeating its cycle of operation.

10. In combination, a typewriter mechanism including a carriage and tabulating mechanism therefor, and a computing mechanism including a series of registers and denominational trains therefor, means operated by said carriage for controlling the de nominational trains, said controlling means including a series of rolls normally effective for operatively connecting the typewriter mechanism to the computing mechanism, a general operator to operate said registers, a motor, means for operatively connecting said general operator to said motor, mecha nism operatively connected to said tabulating mechanism to control said general operator, means for automatically rendering ineffective said rolls by the action of said gen eral operator, means for locking said rolls in ineffective positions while the tabulator keys are depressed, and until the general operator has completed its cycle of operatlon, means for automatically preventing said general operator from repeating its cycle of operation, and means to restore said rolls to normal effective positions.

11. In combination, a typewriter mechanism having numeral-keys, a carriage and a tabulating device therefor including a series of keys, and a universal bar operable thereby, a computing mechanism operable by said last-mentioned keys and having registers and including denominational trains and a series of members operable by the carriage for controlling the denominational trains, and also including a general operator for running the amounts set in the denominational trains into the registers, a motor to drive said general operator, a plurality of releasing bars for disconnecting or silencing a series of selecting members, means operated by said universal bar for automatically rendering ineffective said releasing bars, including means operated by said universal bar to trip the motor, means to stop the general operator upon completing a normal cyole, and means to enable said general operafior to render ineffective said selective memers. Y

12. In combination, a typewriter mechanism having numeral-keys, a carriage and a tabulating device therefor including a series of keys, and a universal bar operable thereby, a computing mechanism operable by said last-mentioned keys and having registers and includi denominational trains and a series of mem ers operable by the carriage for contro the denominational trains, and also inclu ing a general operator for running the amounts set in the denominational trains into the registers, a motor to drive said general operator, a plurality of releasing bars for disconnecting or silencing a series of selecting members, means operated by said universal bar for automatically rendering ineffective said releasing bars, including means operated by said umversal bar to trip the motor, means to stop the general operator upon completing a normal cycle, means to enable said general operator to render ineffective said selecting members, a lock holding said releasing bars in ineflective positions while the tabulator key is depressed, means to restore said lock to its normal position, and means normally ineffective to lock said numeral-keys against operation and brought into action when said tabulator key is acting to render said releasing bars ineffective.

13. The combination of a typewriting ma chine including a tabulating mechanism, a computing mechanism including a general operator to actuate the computin nism, a motor, means conditioned by the actuation of the tabulating mechanism to tabulate, to render the motor operative to drive the general operator, and means connected to the tabulating mechanism and automatically operative by thegeneral operator to silence themotor at the end of its operative cycle.

'ADOLPH G. KUPETZ.

mecha- 

